1. Reproductive Health Research Center, Department of Obstetrics and Gynecology, Guilan University of Medical Scieneces, Rasht, Iran
2. Medical Biology Research Center, Health Technology Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
3. Division of Maternal Fetal Medicine, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA
4. Department of Biostatistics, School of Health, Kermanshah University of Medical Sciences, Kermanshah, Iran;
5. Epidemiology and Biostatistics Unit, Rheumatology Research Center, Tehran University of Medical Sciences, Tehran, Iran
6. Department of Obstetrics and Gynecology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
7. Department of Obstetrics, Gynecology, and Perinatology, Hamadan University of Medical Sciences, Hamadan, Iran
8. Department of Obstetrics and Gynecology, Qom University of Medical Science, Qom, Iran
9. Department of Obstetrics and Gynecology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
10. Maternal Fetal Neonatal Research Center, Tehran University of Medical Sciences, Tehran, Iran
11. Nursing and Midwifery Care Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
12. Department of Obstetrics and Gynecology, Isfahan University of Medical Sciences, Isfahan, Iran
13. Fetal Health Research Center, Hope Generation Foundation, Tehran, Iran
14. Department of anesthesiology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran Tehran, Iran
15. Department of Obstetrics and Gynecology, Tehran University of Medical Sciences, Tehran, Iran
16. Imam Khomeini Hospital Complex, Tehran University of Medical Sciences, Tehran, Iran
17. Cardiac Rehabilitation Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
18. Division of Fetal Therapy and Surgery, Baylor College of Medicine and Texas Children's Fetal Center, Houston, TX, USA